.app {

    height:calc(100vh);
    overflow:hidden;
}

.app_sider {
    background-color: #fff;
}


.sider_logocontainer {
    width: 100%;
    padding:20px;
    text-align: center;
    
}

.sider_logoimg {
    
    color:rgb(204, 22, 22);    
    font-size: 1.5rem;
    
}
.sider_logotext {
    margin-left:1rem;
    font-size:0.8rem;
    color:black;
}



/* header */
.header {
  display:flex;
  justify-content:space-between;
  
  height: 100%;
  align-items: center;
}
.header_menu {
  width: 90%;
  
  display: inline-block;
  position:relative;
  
}
.header_logout {
  padding-right:50px;
}
/* .header_logout > .ant-btn {
  background-color: rgb(204, 22, 22); 
  color:#fff;
} */